Portable sign



FIG. 1 is a front perspective view of a portable sign showing my newdesign;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a top plan view thereof;

FIG. 4 is a right side elevational view thereof, with the opposite sidebeing a mirror image; and,

FIG. 5 is a bottom plan view thereof.

The ornamental design for a portable sign, as shown and described.